add TriggersToPostsRepo

publishing/api/src/commonMain/kotlin/dev/inmo/postssystem/core/publishing/PublishingKeysRegistrar.kt

@@ -22,6 +22,9 @@ interface WritePublishingRegistrar {
         key: TriggerControlKey,
         postId: PostId
     ): Boolean
+    suspend fun unregisterTriggerForPost(
+        postId: PostId
+    ): Boolean
 }
 
 interface PublishingKeysRegistrar : ReadPublishingRegistrar, WritePublishingRegistrar
@@ -48,5 +51,17 @@ class BusinessPublishingKeysRegistrar(
             }
         }
     }
+
+    override suspend fun unregisterTriggerForPost(
+        postId: PostId
+    ): Boolean = repo.getTriggerControlKeyByPostId(
+        postId
+    ).let { previousKey ->
+        repo.unsetPostTriggerControlKey(postId).also {
+            if (it && previousKey != null) {
+                unregisteredKeysChannel.send(previousKey)
+            }
+        }
+    }
 }
 

publishing/api/src/commonMain/kotlin/dev/inmo/postssystem/core/publishing/TriggersManagementService.kt

@@ -8,19 +8,32 @@ class TriggerSetterServiceUnknownTriggerIdException(
     "Unknown trigger id $triggerId"
 )
 
-interface TriggerSetterService {
+interface ReadTriggersManagementService {
+    @Throws(TriggerSetterServiceUnknownTriggerIdException::class)
+    suspend fun getTrigger(postId: PostId): TriggerId?
+}
+
+interface WriteTriggersManagementService {
     @Throws(TriggerSetterServiceUnknownTriggerIdException::class)
     suspend fun setTrigger(postId: PostId, triggerId: TriggerId): Boolean
 }
 
-class BusinessTriggerSetterService(
+interface TriggersManagementService : ReadTriggersManagementService, WriteTriggersManagementService
+
+class BusinessTriggersManagementService(
     private val postKeyGenerator: PostKeyGenerator,
-    private val publishingKeyReceiverGetter: PublishingKeyReceiverGetter
-) : TriggerSetterService {
+    private val publishingKeyReceiverGetter: PublishingKeyReceiverGetter,
+    private val keysRegistrar: PublishingKeysRegistrar
+) : TriggersManagementService {
+    override suspend fun getTrigger(postId: PostId): TriggerId? {
+        TODO("Not yet implemented")
+    }
+
     override suspend fun setTrigger(postId: PostId, triggerId: TriggerId): Boolean {
         val publishingKeyReceiver = publishingKeyReceiverGetter(triggerId) ?: throw TriggerSetterServiceUnknownTriggerIdException(triggerId)
         val triggerControlKey = postKeyGenerator(postId, triggerId)
 
+        keysRegistrar.registerTriggerForPost(triggerControlKey, postId)
         publishingKeyReceiver.acceptKey(postId, triggerControlKey)
         return true
     }

publishing/api/src/commonMain/kotlin/dev/inmo/postssystem/core/publishing/repos/TriggersToPostsRepo.kt

@@ -0,0 +1,31 @@
+package dev.inmo.postssystem.core.publishing.repos
+
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.postssystem.core.post.PostId
+import dev.inmo.postssystem.core.publishing.*
+
+interface ReadTriggersToPostsRepo : ReadKeyValueRepo<PostId, TriggerId>
+interface WriteTriggersToPostsRepo : WriteKeyValueRepo<PostId, TriggerId>
+interface TriggersToPostsRepo : KeyValueRepo<PostId, TriggerId>, WriteTriggersToPostsRepo, ReadTriggersToPostsRepo
+
+fun TriggersToPostsRepo(
+    keyValueRepo: KeyValueRepo<PostId, TriggerId>,
+    generator: PostKeyGenerator,
+    writePublishingKeysRegistrar: WritePublishingRegistrar
+): TriggersToPostsRepo = object : TriggersToPostsRepo, KeyValueRepo<PostId, TriggerId> by keyValueRepo {
+    override suspend fun set(toSet: Map<PostId, TriggerId>) {
+        keyValueRepo.set(
+            toSet.filter { (postId, triggerId) ->
+                val publishingKey = generator(postId, triggerId)
+                writePublishingKeysRegistrar.registerTriggerForPost(publishingKey, postId)
+            }
+        )
+    }
+
+    override suspend fun unset(toUnset: List<PostId>) {
+        toUnset.forEach {
+            writePublishingKeysRegistrar.unregisterTriggerForPost(it)
+        }
+        keyValueRepo.unset(toUnset)
+    }
+}